diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index b1c2fe8b6dcd32f2a161ad3df5df03e2a1a8752a..84a4bc0cbee417df2fdeebda3d043370dbf8629e 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -507,9 +507,14 @@ static int __do_config_autodelink(struct us_data *us, u8 *data, u16 len)
 {
 	int retval;
 	u8 cmnd[12] = {0};
+	u8 *buf;
 
 	US_DEBUGP("%s, addr = 0xfe47, len = %d\n", __FUNCTION__, len);
 
+	buf = kmemdup(data, len, GFP_NOIO);
+	if (!buf)
+		return USB_STOR_TRANSPORT_ERROR;
+
 	cmnd[0] = 0xF0;
 	cmnd[1] = 0x0E;
 	cmnd[2] = 0xfe;
@@ -517,7 +522,8 @@ static int __do_config_autodelink(struct us_data *us, u8 *data, u16 len)
 	cmnd[4] = (u8)(len >> 8);
 	cmnd[5] = (u8)len;
 
-	retval = rts51x_bulk_transport_special(us, 0, cmnd, 12, data, len, DMA_TO_DEVICE, NULL);
+	retval = rts51x_bulk_transport_special(us, 0, cmnd, 12, buf, len, DMA_TO_DEVICE, NULL);
+	kfree(buf);
 	if (retval != USB_STOR_TRANSPORT_GOOD) {
 		return -EIO;
 	}